Linecasting machine



Dec. 18, 1962 R. c. LAWSON LINEQASTING MACHINE 3 Sheets-Sheet 1 Filed Oct. 2, 1961 INVENTOR. ROBERT C. L AWSON BY I Dec. 18, 1962 R. c. LAWSON 3,068,997

LINECASTING MACHINE Filed Oct. 2, 1961 3 Sheets-Sheet 2 ROBERT c. LAWSON AT'TORNEY Filed Oct. 2, 1961 3 Sheets-Sheet 3 INVENTOR ROBERT C. LAWSON BZQWWM ATTORNEY United States Patent 9 3,068,997 LINECASTING MACHINE Robert C. Lawson, Robinswood, Fla.

(6234 Hialeah, Orlando, Fla.) Filed Oct. 2, 1961, Ser. No. 142,185 9 Claims. (Cl. 199-20) This invention relates to an improved linecasting machine, and more particularly to such a machine in which a novel speed changing mechanism is employed in connection with an automatic tape control of the machine, this being correlated with movement of shiftable matrixcontaining magazines so that When the operator shifts from a magazine containing large type to a magazine containing small type, or vice versa, the tape control unit as well as possibly other functions of the machine such as the assembler, distributor and keyboard can be caused to run at the optimum speed.

Typographical composing, casting and distributing machines of the conventional type have undergone considerable improvement since the time of Ottmar Mergenthaler, Whose basic Patent No. 436,532 taught the use of ma trices, which are selectively released by the operator from their storage magazine in the order in which their characters are to appear in print. These matrices are then composed in line, the composed line transferred to the face of a slotted mold, the mold filled with molten metal to form a type bar or slug against the matrices, which is ready for immediate use. The matrices thereafter are returned through a distributing mechanism to the correct location in the magazine from which they started.

The comparatively recent patent to Rossetto et al. No. 2,774,463 taught certain improvements which enabled the speed of typesetting machines to be increased from six or seven cycles per minute to approximately twelve cycles per minute. Even so, the speed of these machines has been limited by the fact that when small type is being set, more matrices are required to fill each line, and it is necessary that the lead casting portions of the machine wait for longer intervals, thus slowing production.

According to the present invention, I advantageously employ a speed changing mechanism in conjunction with the automatic tape control unit used with the machine so that the tape control unit can operate at the optimum speed as determined by the size type being set. As an example of preferred construction, I may employ a second driving motor separate and distinct from the motor used to drive the cams of the machine, which separate motor may drive the tape control unit by virtue of driving the intermediate shaft of the typesetting machine. The intermediate shaft, in addition to being responsible for driving the tape control unit also may drive the assembler, distributor and keyboard function-s, which also advantageously change speed in concert with the change of speed by the tape control unit.

The change of speed of the tape control unit is of principal significance according to my invention when speed changes accompany changes in the size type being set by the machine. However, if it is not desired to change speeds as the size type is changed, the ease with which the speed of the intermediate shaft can be freely adjusted according to my invention enables the speed of the machine to be set as desired.

According to the primary operation, I provide an arrangement whereby as the operator changes magazines, a commensurate change in tape control unit speed is brought about so that this unit, as well as the assembling and distributing functions may proceed at the optimum speed consistent with the size type being set.

3,%8,997 Patented Dec. 18, 1962 For example, a typesetting machine employing my invention may be equipped with two magazines, one containing 5 /2 point type and the other containing 9 point type. By appropriate movements of a hand lever utilized on these machines, the shift frame can be raised or lowered to bring either magazine into the operative position, thus to enable the desired size type to be set. However, in the past the casting section of the machine has had to wait during the time that the smaller 5 /2 point type is being assembled. By virtue of the present invention, the hand lever movements simultaneously bring about appropriate changes in the speed of the tape control unit, this being effected for example by changing the speed of the intermediate shaft, which drives the assembling and distributing functions as well.

On the TTS Comet typesetting machine manufactured by the Mergenthaler Linotype Comp-any, I have pre-. ferred a tape control unit known as a Teletypesetter, this being a unit manufactured by Fairchild Graphic Equipment Division of the Fairchild Camera and Instrument Corporation of Plainvicw, Long Island, New York, and I found that whereas this unit can operate at 420 r.p.m. for 9 point type, the speed of the Teletypesetter unit could be increased to 540 r.p.m. according to my invention when 5 /2 point type is being set. This unit is mentioned by way of example however, for the RCA Electro-Typesetter system or the AutoSetter unit of Star Parts, Inc., could be used equally well.

These and other objects, features and advantages will be more apparent from a study of the enclosed drawings in which:

FIGURE 1 is a perspective view of a typesetting machine, with portions broken away to reveal certain details of one auxiliary driving arrangement according to my invention;

FIGURE 2 is a side view, partly in section to reveal a first magazine in operative position and the auxiliary motor in a first driving relationship;

FIGURE 3 is a view similar to FIGURE 2 but with a second magazine moved into operative position and the auxiliary motor moved into a second driving relationship;

FIGURE 4 is a fragmentary view, to a smaller scale, of an alternative driving motor arrangement; and

FIGURE 5 is a view taken from the rear of the linecasting machine to reveal the use of an intermediate shaft driven by the auxiliary motor, so that the speed of the tape control unit as well as that of the assembler and distributor functions may automatically be changed as the operator selects the desired size type.

Referring to FIGURE 1, a linecasting machine 10 according to my invention may include the keyboard 11, automatic tape control 'unit 12 as well as other conventional devices associated with a machine of this type such as magazine unit 13, assembling mechanism 14, line delivery carriage 15 and distribution arrangement 16.

Also shown in this view is the drive motor 17 employed in the conventional manner for driving the cam section of the machine, and auxiliary motor 18 employed according to my invention for driving the automatic tape control unit 12, and optionally the keyboard, assembler and distributor units of the machine at speeds appropriate for the size type being set.

According to this invention it is desired to change speed of the tape control unit 12 used for automatically controlling the operation of the machine. changes are brought about in concert with changes in 'the magazines, accomplished in the manner hereinafter described in detail. The tape control unit 12 is a selfcontained unit that is widely employed throughout industry on all varieties of modern -channel linecasting machines. The function of such a unit is to sense These speed the code combinations punched in prepared tape, commonly made of paper, and to translate these code combinations into mechanical actions for automatic operation of the linecasting machine. In general practice the tape is placed on an unwind reel 12a shown in the foreground in FIGURE 1, with the inner end of the tape placed with its feed holes meshed with pins of the feed wheel (not shown) of unit 12. As the tape is advanced, six pins rise against the tape, and depending on the code combination, certain pins will pass through the holes in the tape, while others will be blocked. The pattern of the pins sets up a mechanical code combination, actuating levers for automatic operation of the linecasting machine.

As described at length in Bulletin No. 4B of the Fairchild Graphic Equipment Division of Fairchild Camera and Instrument Corporation, their Teletypesetter six unit code brings about the proper selection of matrices and control of machine functions, for with such a code, sixtyfour combinations are possible. Two of the sixty-four combinations are used for shifting and unshifting to upper and lower case characters, respectively, and the remaining sixty-two combinations, preceded by either the shift or unshift combination, can be made to provide a total of one hundred and twenty-four selections which can be used to control the operation of the linecasting machine.

The selector mechanism of a Teletypesetter unit utilizes a selector shaft which derives its motive force from a pulley shaft driven from pulley 12b, through the medium of gears and a jaw clutch. Mounted on the selector shaft (not shown) are three cams, one of which is a selector level bail cam, upon which rides a roller arm and imparts motion to six selector levers which have tape pins on one portion thereof. Other portions of these levers bring about movements of six code bars whose upper and lower edges are notched according to the requirements of the Teletypesetter six unit code. Ninety-six push bars are positioned by the code bars, and movements of the push bars bring about the desired operation of the machine. These general details are presented entirely by way of background and the details of a Teletypesetter unit, or any other tape control unit used in lieu thereof, does not per set represent an invention herein.

Referring to FIGURE 2, a clearer understanding of the significant portions of the magazine selecting operation may be obtained, particularly by comparing this figure with certain corresponding elements appearing in FIGURE 3.

In FIGURE 2, magazines 21 and 22 of the magazine unit 13 are revealed, which contain matrices of two different fonts. These magazines are removably mounted upon separate base frames 21a and 22a, respectively, and these elements together constitute a shift frame 24 which may be raised and lowered on a selective basis by appropriate manipulations of hand lever 23, these movements bringing the desired magazine into operative relation. It should be noted in passing that the inclination of the magazines may be 70 from the horizontal in accordance with the teachings of the Rossetto et al. patent previously cited, this steep inclination expediting the travel of the matrices to and from the magazines.

In the embodiment shown in FIGURES 2 and 3, the shift frame 24 is moved between two operative magazine positions by virtue of a parallel linkage arrangement now to be described. Rotatably mounted in fixed machine frame 25 are two parallel rock shafts, with shaft 26 being disposed near the upper end of the shift frame and shaft 27 near the lower end of the shift frame. Each of the rock shafts has fastened thereto at its opposite ends, crank arms of the same length and angularity, these being crank arms 28 on shaft 2 6 and arms 29 on shaft 27. Arms 28 are pivotally connected by links 30 to the 4 upper portion of the bottom side of the shift frame, whereas links 31 connect arms 29 to the lower portion of the bottom side of the shift frame.

Each of the rock shafts also has fastened thereto at its opposite ends further crank arms, these being arms 32 fastened to a shaft 26 and arms 34 fastened to shaft 27, these pairs of arms being connected to long foreand-aft links 33 serving to coordinate movements of shaft 26 and 27. Note FIGURE 5. The rotation of the crank shafts is effected by means of hand lever 23 fastened directly to shaft 27, and as should now be evident, the shafts will be caused to rotate in unison in raising and lowering the shift frame, thus maintaining the magazines at the proper inclination in both positions of the shift frame.

In order to limit the movement of the shift frame in opposite directions and to locate the selected magazine accurately in its operative position, two pairs of fixed stops in the form of adjustable set screws 35 are provided, one at each of the four corners of the shift frame. Each pair of stops is located in a U-shaped bracket 36 attached to the fixed machine frame and arranged to be engaged by a lug 37 protruding from the lower base frame. As will be apparent, when the shift frame is in the lower position shown in FIGURE 2, all four lugs 37 thereon will bank against the lower fixed stops whereas when the shift frame is in the upper position shown in FIGURE 3, all four lugs will bank against the upper fixed stops.

The shift frame is held in either of its two different positions by means of counterbalancing spring 38 which is connected to the shift frame by virtue of short crank shaft 39 mounted in the fixed machine frame as seen in FIGURES 2 and 3. Crankshaft 39 has two arms 4% and 41 of equal length, arm 40 being pivotally connected to the upper end of the spring, and the arm 41 pivotally connected by means of link 42 to a plate 43 attached to the underside of the shift frame. The parts are so related that when the shift frame occupies its lower position as shown in FIGURE 2, the lifting force of the spring 38 will be overcome by the weight of the magazine structure which thus will be allowed to settle firmly down upon the fixed stops 35. At this time the crank arm 40 approaches the vertical and holds the counterbalancing spring near a dead center position. However, when the handle 23 is pushed down to raise the shift frame to the upper position shown in FIGURE 3, the crank arm 40 will be turned down to a nearly horizontal position and thus, because of the increased leverage, enable the counterbalancing spring to exert a greater lifting force, one which is sufficient to overcome the weight of the whole magazine structure and hold it firmly against the upper fixed stops 35.

The foregoing description is not per se part of this invention, but rather is a part of the combination according to this invention, according to which the shifting from one magazine to another brings about a simultaneous and appropriate speed of the tape control unit. As indicated in considerable detail in FIGURES 2, 3 and 5, according to a preferred arrangement, I accomplish this speed change by changing the speed of intermediate shaft 52, the result being that I not only effect a change in tape control unit speed commensurate with the size type being set, but also I effect similar commensurate changes in the keyboard, assembling and distributing functions.

Although the speed change could be effected by utilizing a variable speed motor or by the use of a variable speed transmission, according to the embodiment revealed in the aforementioned figures, the auxiliary motor 18 is utilized for driving all of the significant continuous 1y driven parts of the machine whereas, as previously mentioned, motor 17 is employed for driving the cams. The details of latter drive arrangement are not a part of this invention, and are mentioned hereinafter.

Motor 18 is equipped with a variable diameter pulley 51, and by virtue of a driving belt 54 extending between pulley 51 and somewhat larger pulley 53 mounted upon intermediate shaft 52, the motor 18 is utilized for supplying a driving force to the intermediate shaft which, according to the typical linecasting machines, is responsible for driving the tape control unit as well as the other continuously driven parts of the machine. Pulley 55 mounted on shaft 52 can drive a belt 56 for the assembling mechanism, pulley 57 a belt 58 for the keyboard function, pulley 59 a belt 60 for the distributor screws of distribution arrangement 16, and pulley 61 a belt 62 for driving the tape control unit 12 by virtue of driving its pulley 12a in rotation. Alternatively, the motor 18 can directly drive the tape control unit, by belt or otherwise.

Motor 18 is mounted upon a movable base structure 63 which enables the distance between the shaft of this motor and the intermediate shaft to be varied at the same time that the motions of handle 23 bring about the shift of magazines. Pulley 51 may for example be of the type set forth in the Michie Patents Nos. 2,776,575 and 2,797,- 587 wherein one face of the pulley is spring loaded and moved by belt tension toward or away from the fixed face of the pulley. Inasmuch as the belt 54 is virtually inextensible, as the motor 18 is moved toward or away from the intermediate shaft 52, the belt is moved with respect to the pulley halves so as to change the effective diameter of pulley 51. Since in this instance this motor turns at an essentially constant speed such as 1140 r.p.m., as the motor is moved away from the intermediate shaft, increased belt tension forces the movable pulley half to move away from the fixed pulley half, thereby to decrease the effective diameter of pulley 51 and hence drive the intermediate shaft slower. Note FIGURE 2. Conversely, as the motor 18 is moved toward the intermediate shaft as shown in FIGURE 3, the intermediate shaft as well as the functions driven thereby are driven faster as a result of the large effective diameter of pulley 51, for the decreased belt tension allows the springloaded half of pulley 51 to move toward the fixed half.

I have found that one simple yet effective way of bringing about the aforementioned movements of the auxiliary motor involves utilizing the rotation of rock shaft 27, to which the operators lever is aflixed. As seen in FIGURES 2, 3 and 5, a crank arm 65 is affixed to rock shaft 27 approximately midway between the crank arms 34, with motions of this handle causing rather substantial movements of arms 65, as will be noted from comparing its relative position in FIGURES 2 and 3. Pivotally connected to a radially outward portion of arms 65 is a substantially vertically extending rod 64, the lower end of which extends through a movable plate 66 upon which motor 18 is mounted. Plate 66 is pivotally mounted at 67 to the frame of the machine, so as the movements of the rod 64 occur due to movements of lever 23, pivotal movements of plate 66 take place, thus changing the height of the motor with respect to intermediate shaft 52. The substantially axial movements of rod 64 are transmitted to plate 66 by virtue of an upper nut 68 and a lower nut 69, which are threaded upon rod 64, and therefore whose positions on the rod 64 are easily adjustable so as to bring about desired speed changes of the tape control unit. As shown, nuts 68 and 69 may be equipped with lock nuts to prevent their undesired movement.

The lower limit of travel of plate 66 is defined by bottom adjustment screws 72 whose relationship to plate 66 is best seen in FIGURE 5, whereas top adjustment plate 71 defines the upper extent of travel of plate 66, which relationship is best seen in FIGURE 3.

As an example, the magazine 21 may carry 9 point type and magazine 22 may carry 5 /2 point type. By appropriate movements of the hand lever, the shift frame can move the 9 point magazine or the 5 /2 point magazine into operative position, as seen in FIGURES 2 and 3, thus toenable the operator to utilize-matrices of the size type desired. However, in the past the casting section of the machine has had to wait during the time that the smaller type is being assembled.

By virtue of the present arrangement the speed of the tape control unit can be altered automatically as the magazine-selecting movements of the shift frame are brought about, merely by having unit 12 driven by a variable speed arrangement which is automatically turned faster as the 5 /2 point type is being set, Without disturbing the constant speed of the cam section of the machine. In the foregoing case, the speed change of a tape control unit may be from 380 rpm. to 520 rpm. for example, which means dramatic changes in productivity.

As revealed in FIGURE 5, in some detail, the motor 17 is equipped with a driving pulley 46 which drives, by virtue of a V belt or the'like, a much larger pulley 47 mounted in non-driving relationship upon the clutch shaft 48. Although for simplicity I have shown only a single pulley and belt combination, I may prefer to use a jack shaft arrangement in order to obtain lower speeds. Pulley 47 carries a clutch drum 44 that turn-s continuously as the motor 17 operates. Disposed on the left end of shaft 43 are two clutch arms 45, the ends of which are equipped with leather f-acings. These arms are spring biased into engagement with the inner or working surface of the clutch drum, but are normally held out of engagement by a latch arrangement. Upon the latch being tripped either by the hand lever (not shown) or upon the line delivery slide of the line-casting machine being moved across to the far side of the machine, the clutch leathers engage the clutch drum and communicate the notation of the clutch disc to the cam section via a pinion (not shown) mounted upon the shaft 48. This pinion meshes with driving gear 70 mounted upon the main cam shaft, and the rotation of this shaft brings about the rotation of pot lever cam 49, pump lever cam 50, as well as the other cams of a line-casting machine, such as the first and second elevator cams and the like. In other words, the clutch 45 controls the automatic starting and stopping of the cam shaft, which of course normally remains at rest. If desired, the mount of motor 17 may he movable and a variable pitch pulley 41 used thereon so that the line casting speed may be changed as may be desired.

Although my invention has been described in some degree of conformance with the type of machine set forth in detail in the aforementioned patent to Rossetto et al., I am in no manner to be limited to a machine manufactured by the assignee of that patent. Typesetting machines such as Models B and C manufactured by the Intertype Company of Brooklyn, New York, have readily been adapted to use my invention, as will be noted from schematic FIGURE 4. In this figure, the auxiliary motor 81 is supported upon clutch housing 82 on a tilt base arrangement 83 of the general type described hereinbefore, with pivot 87 being the point about which motor base movement takes place. Clutch arms 85 are movable into engagement with the inner surface of clutch drum 84 at such time as the main cam shaft of the machine is-to be driven in rotation.

Intertype Model B has two -channel magazines and Model C has three 90-channel magazines. The changes in magazine position for Models B and C is accomplished manually by turning a crank located above the right hand side of the keyboard. As the operator rotates this handle (not shown) the magazine changing arm 86 is moved in rotation about pivot point 87 so as to bring about by virtue of movements of rod 88, a tilting of the tilt base arrangement 83 concomitant with the magazine selection. As should be apparent, when a variable pitch pulley of the type hereinbefore described is used on motor 81, the speed of the intermediate shaft will be changed proportionately with the degree of tilt of the motor so even Intertype machines having four magazines can have a speed s,oes,997

change appropriate for the size matrices contained in the magazines.

Another arrangement for changing speed may involve a cam arrangement in which a cam disposed adjacent pivot point 87 is moved by arm 36, thus bringing about proportionate tilting of the base of motor 81 without the use of a rod 88. As should be obvious the cam would be moved to two, three or four difierent positions depending upon the number of magazines utilized by the machine.

Although I have shown and described a tilt base motor arrangement for use on both the Mergenthaler Linotype and the Intertype machines, it should be obvious that the same speed changing effect using a variable pitch pulley can be obtained by an arrangement in which the base of the motor is moved laterally toward and away from the intermediate shaft.

Other speed changing arrangements within the scope or" this invention may involve the use of a variable speed transmission such as that manufactured by the Lovejoy' Corporation, with a constant speed motor being employed, and speed changes being effected by gear shifting accomplished mechanically or by electrical means, with either of these being accomplished simultaneously with the magazine changing movements brought about by the operator.

Yet another alternative may involve the use of a motor arrangement in which the shaft speed of the motor itself is changed, such a motor possibly being of a type such as motor No. 17,738 manufactured by the Leland Electric Company of Cleveland, Ohio.

As to the non-continuously driven portions of the machine, the motor 17 may also employ a pulley of the variable diameter type, such as that depicted at 46 in FIG- URE 5. In this instance, however, it is not desired to change the speed of the items driven by this mottor (i.e. the cams) so changes in the speed of cam shaft may be brought about by a wrench type adjustment in which the operator selects the speed at which he wished the cams to be driven.

As is well known, direct current motors have speed changing qualities that are superlative to the speed changing qualities of AC. motors, so in localities or in plant installations in which direct current is available it is entirely within the scope of this invention to have either or both of the motors 17 and 18 of DC. type. As should be obvious, the magazine changing elforts of the operator can be employed for simultaneously bringing about proportionate changes in current flow through a direct current motor 18, thus to accomplish speed changes consistent with the size matrices being selected during the magazine changing movements of the operators handle.

It should be noted that although my invention primarily comprehends a speed changing arrangement in which the selected speeds can be carefully established, the embodiment of my invention involving the arrangement of FIGURES 3 to also easily enables a single speed to be selected with great precision as to the number of r.p.m. of the constantly driven portions of the machines desired. When the magazines 21 and 22 contain point and 11 point type, for example, it may not be desirable to change speed as the magazines are shifted, and it instead may be desirable to obtain a speed for the constantly driven portions of the machine that is different from the speed that would ordinarily be obtained on a machine as delivered by the Mergenthaler Linotype Company or the Intertype Company. Such a speed selection can easily be brought about by backing nuts 68 and 69 away from plate 66 so that they do not contact latter member during movements of rod 64, and then adjusting the height of screws 72 and plate 71 in such a manner as to closely confine the plate 66 at the angle that will result in the desired speed. Relative adjustments of member 71 and screw 72 will permit a wide range of speed adjustments to be made.

It is possible to use my invention in instances in which small type is contained in the outer magazine 21 rather than in the inner magazine 22. Such is possible by using a double ended arm 65 having fittings to receive the upper end of rod 64 in locations apart. Alternatively, the arm 65 can be selectively rotated to diametrically opposite positions on shaft 27 and then secured in such positions, so that as handle 23 is moved from the position shown in FIGURE 2 to the position shown in FIGURE 3, the motor 18 can be caused to move away from the intermediate shaft rather than toward it.

It should also be noted that my invention is not limited to use with linecasting machines equipped with keyboards. Several models of machines such as the Intertype Monarch are particularly designed for use in conjunction With tape control units, and for that reason are not provided with keyboards for manual use. The basic manner in which my novel speed changing arrangement is used is unchanged from the manner previously described herein.

Gther embodiments within the teachings of this invention will be apparent to those skilled in this art, and I am not to be limited to the embodiments shown herein except as required by the scope of the appended claims.

I claim:

1. An automatic speed changing arrangement for a linecasting machine whose action is automatically controlled by a tape control unit, said linecasting machine being equipped with matrix-containing magazines of at least two different fonts, means for moving on a selected individual basis, ones of said magazines into operative position in said machine, said means simultaneously bringing about a change of speed of said tape control unit, said tape control unit being caused to change to a higher speed as a magazine containing smaller matrices is selected and conversely changing to a slower speed in accordance with the size of larger matrices selected.

2. The linecasting machine as defined in clairnl in which said machine utilizes an intermediate shaft for driving in rotation said tape control unit, with changes in speed of said tape control unit being brought about by changes in the speed of said intermediate shaft.

3. An automatic speed changing arrangement for a linecasting machine equipped with matrix-containing magazines of at least two different fonts, and utilizing a tape control unit for automatically controlling the linecasting action of said machine, said machine comprising means for driving said tape control unit at a plurality of selected speeds, means for moving a selected magazine into operative positions, and means for contemporaneously causing said tape control unit driving means to increase the operating speed of said tape control unit with the selection of magazines containing smaller matrices, and conversely causing said tape control unit driving means to selectively decrease the operating speed of such unit as the selection of a magazine containing larger matrices is made.

4. A speed changing arrangement for a linecasting machine equipped with a plurality of magazines containing matrices of different fonts, a primary drive motor, and a tape control unit for automatically controlling the operation of said machine, said speed changing arrangement comprising an auxiliary motor for driving said tape control unit, means for changing the speed at which said aux iliary motor drives said tape control unit, magazine changing means for shifting a selected magazine into operative position, so that its matrices can be used in a linecasting operation, said magazine changing means contemporaneously causing said speed changing means to change the speed of operation of said tape control unit, whereby said machine will operate at the optimum speed for the size matrices contained in the selected magazine.

5. An automatic speed changing arrangement for a linecasting machine having a tape control unit for automatically controlling the operation of said machine, said speed changer comprising an auxiliary motor for driving said tape control unit separately from the rest of said at a machine, said auxiliary motor having a movable base support, the movements of which control the speed at which said tape control unit is driven, means for moving said base support between positions in which said auxiliary motor is effective to drive said tape control unit at pre-established rotative speeds, said machine including a magazine cradle upon which are disposed a plurality of magazines containing matrices of different fonts, said cradle being movable to dispose, on a selective basis, a designated one of said magazines in operative position, so that its matrices can be used in a linecasting operation, said means for moving said base support of said auxiliary motor moving in concert therewith said magazine cradle so as to dispose in operative position on said machine, a magazine having matrices of a pre-established size, which size is commensurate with the speed at which said tape control unit will be driven.

6. An automatic speed changing arrangement for a linecasting machine utilizing a primary motor for driving the cam section of the machine and an auxiliary motor for driving the intermediate shaft of the machine, said intermediate shaft being responsible for driving in rotation the tape control unit utilized for automatically controlling the action of said machine as well as the assembling and distribution functions of the machine, said machine comprising a' magazine cradle containing at least two magazines adapted to contain matrices of different fonts, said cradle being movable between at least two positions in which a magazine is placed in operative position, operating means for moving said magazine cradle between the positions in which a selected one of said magazines is placed in operative position, means for changing the speed at which said intermediate shaft is driven by said auxiliary motor, said operating means simultaneously with cradle movements bringing about increased speed as smaller matrices are employed whereby said tape control unit will be driven at the optimum speed for the size matrices being utilized.

7. An automatic speed changing arrangement for a linecasting machine utilizing an intermediate shaft and a separate motor for driving the intermediate shaft, said intermediate shaft driving the continuously driven functions of said machine, including a tape control unit utilized for automatically controlling the action of said machine, said linecasting machine comprising means for supporting at least two matrix-containing magazines, said supporting means being movable to a plurality of positions, with a magazine being disposed in an operating position in each of said positions of said supporting means, operating means for moving said magazine supporting means between the positions in which a selected one of said magazines is placed in operative position, means associated with said separate motor for bringing about selected changes in speed of said intermediate shaft, latter means being moved in concert with said operating means to such an extent that said intermediate shaft and consequently said tape control unit will be driven at speeds consistent with the size matrices being worked with whereby said linecasting machine will be operated by said tape control unit at the speed optimum for the size matrices being utilized.

8. An automatic intermediate shaft speed changer for a linecasting machine having a cam section driven by a primary motor and an intermediate shaft for driving the continuously-driven elements of said machine, including a tape control unit for automatically controlling the operation of said machine, said speed changer comprising an auxiliary motor for driving the intermediate shaft of said machine, said auxiliary motor having a movable base support, the movements of which control the speed at which said intermediate shaft is driven, means for moving said base between positions in which said auxiliary motor is effective to drive said intermediate shaft at various pre-established rotative speeds, said machine including a magazine cradle containing at least two magazines adapted to contain matrices, said cradle being movable between at least as many operative positions as there are magazines, with a magazine being disposed in operative position in each cradle position, operating means for moving said magazine cradle between its various operating positions, said means simultaneously moving said auxiliary motor into an operative position having an equivalent speed corresponding to the size of the matrices contained in the selected magazine, whereby for each magazine utilized said intermediate shaft will be driven at a speed corresponding to the correct speed for the type being set.

9. An intermediate shaft speed changer for a linecasting machine having a cam section driven by a pri mary motor and an intermediate shaft for driving the continuously-driven elements of said machine, said speed changer comprising an auxiliary motor for driving the intermediate shaft of said machine, said auxiliary motor having a movable base support, the movements of which control the speed at which the intermediate shaft is driven, means for moving said base to positions in which said auxiliary motor is eifective to drive said intermediate shaft at selected different rotative speeds, said machine including a magazine cradle containing at least two magazines adapted to contain matrices, said cradle being movable between at least as many operative positions as there are magazines, with a magazine being disposed in operative position in each cradle position, and operating means for moving said magazine cradle between its various operating positions.

No references cited. 

